1 files changed, 36 insertions, 0 deletions
diff --git a/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java b/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java
new file mode 100644
index 0000000..db6c43b
--- /dev/null
+++ b/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java
@@ -0,0 +1,36 @@
+package bjc.utils.funcutils;
+
+import java.io.IOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.function.BiPredicate;
+
+/*
+ * Functional implementation of a file visitor.
+ */
+final class FunctionalFileVisitor extends SimpleFileVisitor<Path> {
+	private final BiPredicate<Path, BasicFileAttributes>	predicate;
+	private final BiPredicate<Path, BasicFileAttributes>	action;
+
+	public FunctionalFileVisitor(final BiPredicate<Path, BasicFileAttributes> predicate,
+			final BiPredicate<Path, BasicFileAttributes> action) {
+		this.predicate = predicate;
+		this.action = action;
+	}
+
+	@Override
+	public FileVisitResult preVisitDirectory(final Path dir, final BasicFileAttributes attrs) throws IOException {
+		if (predicate.test(dir, attrs)) return FileVisitResult.CONTINUE;
+
+		return FileVisitResult.SKIP_SUBTREE;
+	}
+
+	@Override
+	public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
+		if (action.test(file, attrs)) return FileVisitResult.CONTINUE;
+
+		return FileVisitResult.TERMINATE;
+	}
+}